As a group, the suprahyoid muscles perform what action?

Question

BlackTom AI · Accepted Answer

Let’s break down the function of the suprahyoid muscle group by evaluating each option in turn.
Option 1: 'depress the hyoid bone' — While some muscles can move the hyoid, the primary action of the suprahyoids as a group is not to depress the hyoid. In fact, many suprahyoid muscles elevate the hyoid during swallowing and speaking, so this statement misstates their common function.
Option 2: 'depress the mandible' — When the hyoid is fixed, the muscles of the suprahyoid group (such as the digastrics, mylohyoid, and geniohyoid) act to open the mouth by pulling the mandible downward and forward. This is a classic action described for these muscles as a group.
Option 3: 'rotate the hyoid bone' — The suprahyoid muscles are not known for rotating the hyoid bone as their primary action. Their movements are mostly vertical or anterior-posterior translations, not rotary rotation.
Option 4: 'protract the mandible' — Protrusion of the mandible is primarily accomplished by the muscles of mastication, especially the lateral pterygoid, not by the suprahyoid group. The suprahyoids can assist in jaw opening, not in advancing the mandible forward.
In summary, option 2 reflects the functional role of the suprahyoid muscles in conjunction with a fixed hyoid to depress the mandible, whereas the other statements either describe incorrect actions or misattribute the primary movements to these muscles.

ANATOMY 2300 AU2025 (34636) Unit 4 Exam - Requires Respondus LockDown Browser

As a group, the suprahyoid muscles perform what action?

View Explanation

Log in for full answers

Similar Questions

What muscle is deep to the mylohyoid and protracts and elevates the hyoid?

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler